Sectional concrete block



Feb. 13, 1923.

G. R. ELLIOTT SECTIONAL CONCRETE BLOCK Filed Jan. 5, 1918 L? //r FQ Iv j I /r f Patented Feb. i3, i923o A 1,444,734 rrah y ius.

snor-ten n. nLLIorn-or nnrnorr, MICHIGAN.

SECTIONAL CONCRETE BLOCK.

Application filed January 5, 1918. Serial No. 210,433.

To all whom z'z muy concer-n:

Be it known that I, Geenen R. ELLrorr, a citizen of the United States of rimer-ica, residing at Detroit, in the county of `Wayne and State of Michigan, have invented certain new and useful Improvements in Sectional Concrete Blocks, of which the following is a specification, reference being had therein to the accompanying drawings.

This` invention relates to sectional concrete blocks and refers'more particularly to a construction built up of blocks vto form a hollow square or the like which can be advantageously used in the floor and ceiling constructions of buildings, although in its broader aspects the invention is not limited to the'particular use mentioned.

Among the objects of the invention lare to provide a sectional block built of concrete or the like which can be employed so as to do awaywith the use of wooden forms in building constructions; to provide a construction which, while sufiiciently light in weight, will have the material so distributed` as to provide sufficient strength for load` supporting purposes; to so construct and arrange the parts that the lower surface of the blocks will form a substantially smooth and continuous plastering surface where it is desired to use such surface asthe ceil ing, to provide a construction wherein the blocks go together without nails or other fastening devices; to provide a construction in which the blocks are so formed that they can be economically molded and pulled and in general to provide a new and improved construction of the character above referred to.

In the drawings:

Figure l is a top plan view showing o ne manner of using lbloclrs embodying my 1nvention; l

Figure 2 is an enlargedside elevational view of one of the blocks;

Figure 3 is an enlarged view of the block partly in end elevation and` partly in cross section, the section being taken on the line.

3 3 of Figure 2.

Figure 4 is a view similar to Figure 2 showing a slightly modified construction;

Figure 5 is a view showing a still further modification.

Describing indetail the particular embodiment of my invention shown in the drawings and referring first to the general plan view, A A" A2, etc., designate a series vthe neXt adjacent end block F2.

i and'A F3.

of blocks which at one end rest upon the girder B supported by the permanent supports C C. These blocks have their opposite. ends supported upon either a temporary or permanent support I) andare spaced from each other yto provide a space E in which 'there is poured concrete or the like so as to permanently fasten the blocks together. The bloclrs can be of. any widthand length within the strength limits of the ma-` terial, the block shown in the drawings being of a proportion. of about one foot in width and about seven feetin length, al-

lthough the dimensions can be variedto suit the requirements of the work. ,Each of the blocks A n',

etc. is formed of a plurality of sections' F F F2 F3, the end sections Fv and F2 being interlockedvvith the top and bottom sections FandF3 respectively; The particular construction and arrangement of the interlock for these blocks forms one of the main features 'of my invention.

In det-ail the end sections F and F2 have i dotted lines in Figure 3, and the flanges H v and I rest in seats J' formed in the end portions of the top and bottom sections F Each of the latter sections have flanges K at each side which adjacent their ends are formed with projections K to abut interiorly against the end sections and resist any inward movement thereof. The top and bottom sections are also formed with a hollowed out central portion giving a rela-- tively light'wall or main body portion, at

the opposite sides of which there extendsV strengthening flanges K forming in effect a beam-floor system. The depth of the strengthening fianges Ii is preferably proportioned to about one inch in depth for every foot in length of the block, althoughA these proportions can of course-be varied according to the load to be carried or supported. 1 y

It will be noticed that the ianges H and I are provided with beveled surfaces which abut against corresponding beveled surfaces in the top and bottom sections. rlhis not only facilitates the manufacture of the blocks but also the assembly and when put together as shown in Figure 2 each section will be rigidly interlocked with its cooperating sections.

The assembled blocks after being arranged in place as shown in Figure 1 then have concrete poured in the spaces which will also flow into the recesses G" and when set will interlock the various blocks together into one permanent construction. ln pouring the concrete ar temporary support or block N may be positioned at the lower end of the space E or l may employ theconstruction shown inflFigure 4. ln this construction the bottom sections F3 are provided with proj ections @which meet at with a correspond ing projection on the vnext adjacent block. Also ifdesired a steel -beam or other supportino' member l? may be positioned in the space 1 and the blocks supported therefrom by suspension means such as the wire or supporting members@ which are connected to eyelets R and R cast into the lower sections of the blocks. vVarious changes in such details of construction can, however, be made within the scope of my invention.

It will be noticed that where my sectional blocks are employed for a floor construction thatthe lower edges of the blocks form a substantially continuous and smooth plastering surface, thus doing way with the necessity of supporting metal lath or the like from the lower surface of the floor supports. Moreover the trussing effect of the blocks is such that they can be employed as the loadsupporting means in contradistinction to previous constructions wherein the blocks simply served as forms around which the concrete was poured to form the load-supporting member.

In the construction shown in Figure 4 the lower surface can be used a paneled ceiling in factory construction without plastering.

In the construction shown in Figure 5 I have illustrated a structure which can be employed for roofs or the like in which the lower member of the hollow block can be omitted. In this construction the top sections T and T interlock with the end sections U and U, while at their lower ends the latter interlock with a joint bottom section V. The construction of the joint is similar to that described in connection with Figures 1 'to 4, except that the top sections and the bottom joint section are provided with ribs or flanges W which prevent the end blocks from moving inward. rlhis last-mentioned construction is particularly adapted for firey proofing steel construction.

While I have shown and described certa-in inattesa constructions and uses of my invention, it is not limited tothe particular forms and uses shown, as it could also be used for culverts and various other purposes. Also where used in building construction it is particularly advantageous, in that the hollow blocks themselves form astructure that can be used.

as a pipe trench and any part of the construction is removable. Also the hollow blocks could be used as a pipe trench or other conduit without reference to their other use.

`rWhat l claim as my invention is 1. il sectional block formed of concrete or the like comprising top and bottom sections having a relatively light main body portion and side flanges provided with projections near the ends thereof, of-endsections adapted to fit against said projections andhaving projecting lflanges tting into recesses in the top and bottom sections..

2. A sectional block formed of concrete or the like comprising top and bottom sections having a relatively light main body portion and side flanges provided with projections near the ends thereof, of end sections adapted to fit against said projections and having projecting anges tting into recesses in the top and bottom sections, said end sections having a recessed central portion adapted in the assembled position of the parts to receive concrete or the like which when set will lock the sections together.

3. A sectional block formed of concrete or the like, comprising top and bottom sections each having a main body portion formed with flanges at the respective edges thereof, said flanges and body portion being respectively formed with. projections at each,k

end 'of the sections, and end sections engageable at top and bottom between the projections formed upon the flange and body portion of the top and bottom sections.`

4. 1n a sectional block of concrete or the like, a top plate having parallel kdepending flanges at opposite side edges thereof, end members transverse to said flanges supporting said top plate and bearing against shoulders formed transverse-ly upon saidvfianges.

5. ln a sectional block of concrete or the like, a top plate having parallel depending flanges at opposite side edges thereof and formed with depending projections adjacent its ends, and end sectionsV supporting said top section engaged between shoulders formed upon said Hanges and said depending projections. y

t5. A sectional block formed of conc-rete or the like, comprising top and bottom sections having a relatively light main body portion and flanges adjacent the side edges thereof, and end sections engageable between said top and bottom sections adapted to bear against said flanges and provided with projections engaging recesses in the top and bottom sections.

7. A sectional block formed of concrete or the like, comprising top and bottom sections having a relatively light main body portion and flanges adjacent their side edges, of end sections engageable between said top and bottom sections and adapted to bear against said flanges, said end sections hav-` ing their central portions recessed to receive concrete or the like for locking adjacent blocks together.

plate and supporting a top plate and bear ing against shoulders formed transversely upon said flanges.

9. A sectional block ont concrete or' the like, comprisinga top and bottom plate7 one ot which is provided adjacent opposite edges thereof With flanges projecting toward the other, said flanges being formed with shouldersl adjacent their extremities and end sec*- tions interposed between said top and botiom plates and engaged between said shoul- .ers.

ln testimony whereof l ax my signature.

' :erronea nfnrtiorr. 

